Mold for concrete-wall construction.



PATENTED JUNE 26, 1906.

B. A. MUELLER. MOLD FOR CONCRETE WALL OONSTRUGTION.

APPLICATION FILED DEC. 30, 1905.

.fisriazard 210.8%,192. PATENTED JUNE 26, 1906.

B. A. MUELLER. MOLD FOR GJNORETE WALL CONSTRUCTION.

APP

IOATION FILED DEC. 30. 1905.

2 SHEETSSHEET 2.

UNITED sr T s PAT NT oFFIon.

' BERNHARD A. MUELLER. or AsT s'r. LoI'IIs, ILLINoIs, MOLD .FO R CONCRETE-WALL CONST'RUICTION- I Specification of Letters Patent.

- Patented June 20, 1906.

Application filed December 80, 1905. Serial No. 298,888.

To all uihom it may concern: Be it known that I, BERNHARD A. MUEL R,

a citiien of the United States, and a resident of East St. Louis, county of St. Clair, and State of Illinois, have invented a new and useful Improvement in Molds for Concrete- Wall Construction, of which the following is a s ecification.

y invention relates to molds for concretewall construction, and has for its principal objects to provide a mold consisting of interchangeable sections, to rovide for building the mold'up as the .wa haf'dens, using for this purpose the sections of the mold upon 5 ortlons of the wall which have hardened sufciently to require no further support, to dispense with the use of scaffolding to support the molds, and other objects hereinafter more fully appearing. I

My Invention consists in the parts'and in the arrangements and combinations of parts hereinafter described and claimed.

In the accompanying drawings, forming a part of this specification, and wherein hke symbols refer to like parts wherever they occur, Figure 1 is an elevational view of the mold and a fragment of the completed portion of the wall, the tie rods and clamps bein omitted. Fig. 2 is a lan view of the mol filled with concrete, t e top tie;rods being omitted. Fig. 3 is a vertical sectional view through a concrete wall in course of construc- I Fig. 5 is a sectional view on the line 5 5 of Fig. 4.. Fig. ,6 Ban enlarged pers ective sectional view through a section 0 the mold, Fig. 7 is an end view of fragments of two superposed sections of the mold, showing portions of the end braces. Fig. 8 is a side view of fragments of superposed and abutting sections of-the mold, showing portions of the end braces. Fig. 9 is a horizontal view on; the lines 99 of Fig. 8. Fig. 10 is a erspective view of the end of a section of t e mold, showin an end brace; and Fig. 11 shows a modifie form of clamp ing device. 4

The present mold for concrete-wall construction consists-of a plurality of like sections which are mutually interchangeable. Each section comprises a plate or plank 1, having strips -2 3, wider-than its thickness, secured to its upper. and lower edges, respectively, and forming flanges. Thus comparatively wide 'bearing-sm'faces are rovided at the edges of the plate or'plank. e lank carries braces at its ends and at interva s between its ends.

These braces are to prevent any warping of the plank and to provide interlockin means to secure the sections together in a uilt-up mold. The intermediate braces are all alike.

' The end braces are the reverse of each other.

The upper and lower ends of all braces are complementary with res ect to each other, and hence the lower en of any brace will fit into the upper end of any other brace;

- Each intermediatebrace 4' consists of a casting conformingin shape to the flanged 7o plank which it fits and is reinforced by a strengthening-rib 5. At its lower end each brace terminates in a too 6, which is substantially wedge shaped. The too 6 and the lower edge of tlie' flanged plank are provided with a 7 5 groove 7 to accommodate a tie-rod. At its upper end the (brace terminates in a rojection 8, having a seat 9 conforming in s ape to the toe 6 ,so t at the toe of a similar brace may fit snugly therein. The projection 8 is 'provided with a groove 10 to accommodate a tie.- rod. The toe 6 and the projection 8 are provided with alined vertical holes 11, throu h which a nail-or pin may be passed to hold t e braces. in pro er. relative position while the 5 tie-rodsand 0 amps are being adjusted.

Each end brace 12 consists of a casting which is angular'in cross-section and conforms in shape to the end of the flanged plank. The flange of the brace fitting over the end of the plank is flat and provided with screw-holes. A strengthenin -rib 13 is provided on the outer flange of t e brace. The brace terminates atits lower end in a substantially wedge-sha ed too 14, which is similar 5 17 to accommodate a tie-rod. Near the top and bottom each end brace is provided wit enlargements 18 19, throu hwhich holes 20 21, respectively, extend. ins, nails, or the I like may be inserted in said holes to secure abutting planks together while the rods are ate a tie-rod. At its upper end At the end cor- 1e ne r the projection 16 is provided with a notch being adjusted or at any other time. The too 14 and projections 16; are rovided with alined holes 22, which-serve t e same urose as the holes 11 in the intense ate races. I

In constructing a concrete wall as many of the sections above described as are requnred may be used. The sections are arranged in tiers separated from each other by a distance e ual to the desired thickness of the wall.

e tiers consist of as many supe fosed horizontal rows of sections as may e, desired. The supcrtposed sections are arranged so that the toes o the upper braces fit into the seats in the rejections of'the lower braces in ten tical ainement therewith. The intermedh ate braces may interlock with intermediate braces or with end braces. In Fig. 1 the sec= tions of the two superposed rowsare shown as meetin in the same vertical" lane. The sections 0 the upper row could e arran ed to meet in the plane of an intermediate brace, if desired. This is possible because the upper and lower-ends ofthe intermediate braces are twice as Wide as the endbreces. Thus two end braces can be interlockedwi'th a single intermediate brace. When-the eec= tions are arranged as described, tie=rods 23' are passed through the holes, formed by the rooves in the meeting faces of the braces and extend through the opposite tiers oi 'sec tions. The tie-rods are preferably provided With a crook 24: or the like on. one end, Which may be engaged by a tool. Clamps 25 are arranged on the outer ends of. tie-rods, two clamps to each end. Each clamp is substan= tially L-shaped, having one arm extendingsubstantially parallel with the rod; and hav ing in the other arm a hole through which the tie-rod extends. The clamp is securely fixed in position on the tie-rod by means of a set-screw 26. In the construction illustrated in Figs. 3, 4 and 5 this set-screw 26 worlts in a threaded hole in the clam itself, in which case it looks the clamp direct y to the rod'andprevents any relative movement, construction illustrated in Fig. 11 the set screw 26 works in a nut or collar 27', specially provided on the tie-rod for the purpose, and this construction has the advantage that it allows the'tie-rod to be rotated to break its bond with the concrete dun'n the period ofhardening without afiecting t 'e position or adjustment of the clamdp. One clamp of each of clamps is a justed so that the end 0 its arm bears u on the upper section in the adjacent tier w 1c the ot e1 clamp is adjusted so that the end of its arm bears upon the'lower section in the adjacent: tier. In order'topermit the adjustment of the two clamps independently of each other, the arm of one of them is made longer than the'arm of the other, as illustrated 1n Figs. 5 "and 11. The set-screws being tightened, the tiers of In the comprisin entice cannotspread apart. he mold beingthus assembled, the concrete is put inside and per- Then one or more of the lower' horizontal rows of sections are removed l) loosening the correspondin ,clam s. he tie-rods are of course embedde in. t e concrete. They can, however, be loosened by applying a tool to the crock and turning them to'loosen them. Then they can be withdrawn and used again. The resulting holes 27 in the walls are {pointed up by hand. The sections removed cm below are then superposed on the top row of the re maining rowsof the tier, bein assembled in the same'manner as before. he concrete is then put in the mold so built u and another horizontal portion of the Wall ormed. These steps being repeated, the Well may be constmcted to-any' height desired, the same sections being used over and over again, the

mold being built up as the work rogresses and being supported by the comp eted por ticn of the wall. The sections of the mold may be used indefinitely, as they are, not injured in assembling and disassembling the mold.

flhviously my mold is capable of consider able modification Within the scope of my invention, and therefore I do not Wish to be limited to the s eeific construction shown and described. I he braces and their inter ga by accidents. lting of a section.

t at I claim'asrn invention, and desire to-sectn'eb Letters atent, is p 1'. Arno d for 'concretewall construction horizo'nt'a sections, each of said 'sectione com- 2;. A mold for concrete-wall construction comprising a plurality of interchangeable sections, each of said sections comprising a iate dedwith flanges at its upper and ower edges, end braces and intermediate braces secured. to said plate, the ends of said intermediate braces being twice as wide as sectiomwvillbe securel held so that they v 'mitted-to not sufficiently to retain'its shape rigidly and sustain the weight of another layer of concrete. 7o

e interlockinp-partscannot be disene a plurality of interchangeable the ends of said end braces; each of said braces having a projection at one end and a corresponding seat at the other end, whereby the sections may be interlocked with each other.

3. A mold for concrete-wall construction comprising tiers of interchangeable sections, each of said sections comprising a plate flanged at its upper and lower edges and a plurality of braces secured to said plate at regular intervals and each having a projection at one end and a corresponding seat at the other end, whereby the sections in each tier may be interlocked with each other, tierods extending from one tier to the other, and clamps adjustably mounted upon the outer ends of said tie-rods and arran ed to bear upon adjacent sections of the mo d.

4. A mold for concrete-wall construction comprising tiers of interchangeable sections, each of said sections comprising a plate flanged at its upper and lower edges and a plurality of braces secured to said plate at regular intervals and each having a projection at one end and a corresponding seat at the other end, whereby the sections in each tier may be interlocked with each other, tierods extending from one tier to the other, and clamps adjustably mounted upon the outer ends of said tie-rods and arranged to bear upon adjacent sections of the mold, each of said clamps comprising an L-shaped member and a set-screw.

5. A mold for concrete-wall construction comprising tiers of interchangeable sections, each of said sections comprising a plate flanged at its upper and lower edges and a plurality 'of braces secured to said plate at regular intervalsand each having a projection at one end and a corresponding seat at the other end, whereby the sections in each tier may be interlocked with each other, tierods extending from one tier to the other, and clamps adjustably mounted upon the outer ends of said tie-rods and arranged to bear u on adjacent sections of the mold, each 0 said clamps comprising an L-shaped member, a collar and a set-screw on said collar.

6. A mold for concrete-wall construction comprising tiers of interchangeable sections, each of said tiers comprising plates, and braces secured to said plates and interlocking with each other, tie-rods extending from one of said tiers to the other, and a pair of clamps secured to each outer end of each of said tierods and having arms extending substantially parallel to said tie-rods, one of the clamps of each pair. of clamps having a longer arm than the other, and each of said'clamps' bearing upon one of the adjacent sections of said mold.

7. A mold for concrete-wall construction comprising tiers of interchangeable sections, each of said tiers comprising a' plurality of flanged plates, and braces secured to said plates and interlocking with each other, the meeting portions of-said braces being provided with corresponding grooves, tie-bars extending through the holes formed by said grooves and from one of said tiers to the other and clamps secured to the outer ends of said tie-rods and bearing upon adjacent sections of said tiers.

8. A brace for a concrete-mold comprising a body terminating at one end in a toe and provided at the other end with a seat adapted to receive the toe of a similar brace in alinement therewith.

9. brace for a concrete-mold comprising a body terminating at one end in a substantially wedge-shaped toe and provided at the other end with a seat adapted to receive the ,toe of a similar brace.

10. Arnold for a concrete-wall construction comprising a plurality of flanged plates and braces secured to said plates and so interlocking with each other as to resist the tilting of said plates.

In testimony whereof I have hereunto signed my name, in the presence of two subscribing witnesses. this 18th day of December, 1905.

BERNHARD A. MUELLER.

In presence of- WM. P. CARR, I J. MneowN. 

